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Tianchen Deng

18 accepted papers

2026

DIAL-GS: Dynamic Instance Aware Reconstruction for Label-Free Street Scenes with 4D Gaussian Splatting

ICRA 2026poster

Urban scene reconstruction is critical for autonomous driving, enabling structured 3D representations for data synthesis and closed-loop testing. Supervised approaches rely on costly human annotations and lack scalability, while current self-supervised methods often confuse static and dynamic elemen…

2026

GRS-SLAM3R: Real-Time Dense SLAM with Gated Recurrent State

ICRA 2026poster

DUSt3R-based end-to-end scene reconstruction has recently shown promising results in dense visual SLAM. However, most existing methods only use image pairs to estimate pointmaps, overlooking spatial memory and global consistency. To this end, we introduce GRS-SLAM3R, an end-to-end SLAM framework for…

2026

GaussianDWM: 3D Gaussian Driving World Model for Unified Scene Understanding and Multi-Modal Generation

CVPR 2026

Driving World Models (DWMs) have been developing rapidly with the advances of generative models. However, existing DWMs lack 3D scene understanding capabilities and can only generate content conditioned on input data, without the ability to interpret or reason about the driving environment. Moreover

Cited by 0SourcecodeScholar
2026

SplatSSC: Decoupled Depth-Guided Gaussian Splatting for Semantic Scene Completion

AAAI 2026technical

Monocular 3D Semantic Scene Completion (SSC) is a challenging yet promising task that aims to infer dense geometric and semantic descriptions of a scene from a single image. While recent object-centric paradigms significantly improve efficiency by leveraging flexible 3D Gaussian primitives, they sti

Cited by 0SourcePDFScholar
2026

TGSFormer: Scalable Temporal Gaussian Splatting for Embodied Semantic Scene Completion

CVPR 2026

Embodied 3D Semantic Scene Completion (SSC) infers dense geometry and semantics from continuous egocentric observations. Most existing Gaussian-based methods rely on random initialization of many primitives within predefined spatial bounds, resulting in redundancy and poor scalability to unbounded s

Cited by 0SourcecodeScholar
2025

Audio Array-Based 3D UAV Trajectory Estimation with LiDAR Pseudo-Labeling

ICASSP 2025accepted

As small unmanned aerial vehicles (UAVs) become increasingly prevalent, there is growing concern regarding their impact on public safety and privacy, highlighting the need for advanced tracking and trajectory estimation solutions. In response, this paper introduces a novel framework that utilizes au…

Cited by 0SourceScholar
2025

CGS-SLAM: Compact 3D Gaussian Splatting for Dense Visual SLAM

IROS 2025

Recent work has shown that 3D Gaussian-based SLAM enables high-quality reconstruction, accurate pose estimation, and real-time rendering of scenes. However, these approaches are built on a tremendous number of redundant 3D Gaussian ellipsoids, leading to high memory and storage costs and slow traini

Cited by 61SourceScholar
2025

DDN-SLAM: Real Time Dense Dynamic Neural Implicit SLAM

RA-L 2025

SLAM systems based on NeRF have demonstrated superior performance in rendering quality and scene reconstruction for static environments compared to traditional dense SLAM. However, they encounter tracking drift and mapping errors in real-world scenarios with dynamic interferences. To address these i

Cited by 46SourceScholar
2025

DSFormer-RTP: Dynamic-stream Transformers for Real-time Deterministic Trajectory Prediction

IROS 2025

As delivery robots are increasingly integrated into our daily lives, their ability to navigate through crowded spaces demands swift and accurate prediction of pedestrian trajectories, which is crucial for autonomous functionality. However, existing methods face challenges of unstable accuracy and in

Cited by 0SourceScholar
2025

LLGS: Unsupervised Gaussian Splatting for Image Enhancement and Reconstruction in Pure Dark Environment

ICRA 2025

D Gaussian Splatting has shown remarkable capabilities in novel view rendering tasks and exhibits significant potential for multi-view optimization. However, the original 3D Gaussian Splatting lacks color representation for inputs in lowlight environments. Simply using enhanced images as inputs woul

Cited by 3SourceScholar
2025

MNE-SLAM: Multi-Agent Neural SLAM for Mobile Robots

CVPR 2025poster

Neural implicit scene representations have recently shown promising results in dense visual SLAM. However, existing implicit SLAM algorithms are constrained to single-agent scenarios, and fall difficulty in large indoor scenes and long sequences. Existing multi-agent SLAM frameworks cannot meet the…

2025

MPDG-SLAM: Motion Probability-Based 3DGS-SLAM in Dynamic Environment

IROS 2025

We present MPDG-SLAM, a novel 3D Gaussian point cloud rendering SLAM method based on Motion Probability (MP) for dynamic interference handling. Current 3DGSSLAM approaches for dynamic environments often rely on optical flow estimation masks. However, these deep learning-based optical flow models are

Cited by 1SourceScholar
2025

SN-LiDAR: Semantic Neural Fields for Novel Space-time View LiDAR Synthesis

IROS 2025

Recent research has begun exploring novel view synthesis (NVS) for LiDAR point clouds, aiming to generate realistic LiDAR scans from unseen viewpoints. However, most existing approaches do not reconstruct semantic labels, which are crucial for many downstream applications such as autonomous driving

Cited by 1SourcecodeScholar
2025

TopoLiDM: Topology-Aware LiDAR Diffusion Models for Interpretable and Realistic LiDAR Point Cloud Generation

IROS 2025

LiDAR scene generation is critical for mitigating real-world LiDAR data collection costs and enhancing the robustness of downstream perception tasks in autonomous driving. However, existing methods commonly struggle to capture geometric realism and global topological consistency. Recent LiDAR Diffus

Cited by 5SourcecodeScholar
2024

PLGSLAM: Progressive Neural Scene Represenation with Local to Global Bundle Adjustment

CVPR 2024poster

Neural implicit scene representations have recently shown encouraging results in dense visual SLAM. However existing methods produce low-quality scene reconstruction and low-accuracy localization performance when scaling up to large indoor scenes and long sequences. These limitations are mainly due…

Cited by 67SourcePDFScholar
2024

PS-Loc: Robust LiDAR Localization with Prior Structural Reference

IROS 2024poster

Prior structural reference like floor plan is readily accessible in indoor scene, which exhibits the potential of improving localization quality without the requirements of a previously-built high-precision map. This paper introduces a novel optimal transport-based framework for prior structural ref…

Cited by 0SourceScholar
2024

SFPNet: Sparse Focal Point Network for Semantic Segmentation on General LiDAR Point Clouds

ECCV 2024poster

"Although LiDAR semantic segmentation advances rapidly, state-of-the-art methods often incorporate specifically designed inductive bias derived from benchmarks originating from mechanical spinning LiDAR. This can limit model generalizability to other kinds of LiDAR technologies and make hyperparamet…

2024

SGS-SLAM: Semantic Gaussian Splatting For Neural Dense SLAM

ECCV 2024poster

"We present SGS-SLAM, the first semantic visual SLAM system based on Gaussian Splatting. It incorporates appearance, geometry, and semantic features through multi-channel optimization, addressing the oversmoothing limitations of neural implicit SLAM systems in high-quality rendering, scene understan…